Former Owner
- J. Paul Getty Museum1
- Jacques Rosenthal1
- James Dyer1
- James Lyell1
- Janārdana Koṇḍadeva Gāḍagīla1
- Jean II de Croÿ1
- Jean-Baptiste Huzard1
- Jesuit College of San Bartolomeo1
- Joachim Guerrinus de Montefegatesio1
- Joannes Salzperg1
- Johann Heinrich van Ess1
- Johann Michael Schiller1
- Johannes Wesbach1
- John Alexander Stewart1
- John Edgar Ker1
- John Lee1
- John Rolls, 1st Baron Llangattock1
- John Towneley1
- José Fernando Ramírez1
- Juan Burgueño1